head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Competitive PvP
A crossover anime arena fighter pitting Shonen Jump heroes against each other.

Execution · Competitive PvP
Tests arena brawling timing and skill-build crafting against human opponents.
Jump Force leans Execution (Competitive PvP); Sonic Battle leans Execution (Competitive PvP).
Sonic Battle leans a little harder on execution, though the gap is small.
Jump Force
3D arena combos with generous tracking
Sonic Battle
Aerial juggles and guard timing on a grid arena
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Jump Force
Human opponents force guard-break guessing
Sonic Battle
Versus humans, baiting special skill choices is the edge
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Jump Force
Full information arena duels
Sonic Battle
Little randomness beyond skill-card drops
Sonic Battle leans a little harder on optimization, though the gap is small.
Jump Force
Team picks and awakening meter management
Sonic Battle
Custom skill builds for Emerl define the meta
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.